The story and atmosphere was intriguing!
Unfortunately, there was something wrong with movement. There was some weird friction that made the left/right movement twitchy. Jumping was very unreliable, too. There wasn't any consistency on the jump height, sometimes it would jump higher with movement, sometimes it made no difference. Not sure if there was meant to be a wall jump mechanic, but the level design implied such, so I guess it just didn't work.
I don't know if these problems are universal since other comments don't say much about them.
I would have enjoyed the game a lot if the gameplay worked. I love looking for secrets, collectibles and story elements, and the mood was good. I did finish with a bad ending, collected 16 cosmic holes.